Skateboard



The FIG. 1 is a perspective view of a skateboard, showing my new design;

The FIG. 2 is a top plan view thereof;

The FIG. 3 is a front elevational view thereof;

The FIG. 4 is a right elevational view thereof;

The FIG. 5 is a rear elevational view thereof; and

The FIG. 6 is a bottom plan view thereof. 

The ornamental design for a skateboard, as shown. 